If We Could Find Them, Primordial Black Holes Would Explain a Lot About the Universe

1 year ago

As far as we know, black holes can only be formed by the death of massive stars, but a persistent…

Trisat-R’s 2-mm Camera Took This Picture of the Earth From 6,000 Km Away

1 year ago

An innovative camera pioneering a new technology in space caught a unique view of our home world.

Is Anything Absolute with Relativity?

1 year ago

The theory of relativity is at once simple and elegant but also maddeningly nonintuitive. There’s no need to get into…

Some of the Moon's Craters are From Interstellar Impacts. Can We Tell Which?

1 year ago

By discovering two interstellar objects (ISOs), we know that asteroids and comets from other star systems pass through the Solar…

Sometimes Compact Galaxies Hide Their Black Holes

1 year ago

Quasars, short for quasi-stellar objects, are one of the most powerful and luminous classes of objects in our Universe. A…

ESA Plans to Eliminate New Space Debris by 2030

1 year ago

What can we do about space junk? We know how much debris is in orbit, and we know the problem…

ESA Has a Difficult Choice: Study Mars, Earth's Magnetosphere, or Gamma-Ray Bursts

1 year ago

The ESA Science Programme has narrowed down the possibilities for its next M-class mission to three concepts.

Astronomers Find Dozens of Massive Stars Fleeing the Milky Way

1 year ago

The Milky Way can't hold onto all of its stars. Some of them get ejected into intergalactic space and spend…

What? Wow! That New Asteroid Image from Lucy Just Got Even More Interesting

1 year ago

Lucy's images of asteroid Dinkinesh are the gift that keeps on giving. First, it was the discovery of a smaller…

How Einstein’s Daydream of Light Created Relativity

1 year ago

Einstein’s fascination with light, considered quirky at the time, would lead him down the path to a brand new theory…